PROPERTY AND EQUIPMENT (Details) (USD $)	12 Months Ended						1 Months Ended	6 Months Ended	12 Months Ended						12 Months Ended					12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Mountaineer West Virginia Racing Commission	Dec. 31, 2011 Mountaineer West Virginia Racing Commission	Dec. 31, 2010 Mountaineer West Virginia Racing Commission	Jul. 30, 2011 Mountaineer West Virginia Lottery Commission	Dec. 31, 2011 Mountaineer West Virginia Lottery Commission	Dec. 31, 2012 Mountaineer West Virginia Lottery Commission	Dec. 31, 2012 Mountaineer West Virginia Lottery Commission Minimum	Dec. 31, 2012 Land	Dec. 31, 2011 Land	Dec. 31, 2012 Building and improvements	Dec. 31, 2011 Building and improvements	Dec. 31, 2012 Building and improvements Minimum	Dec. 31, 2012 Equipment	Dec. 31, 2011 Equipment	Dec. 31, 2012 Furniture and fixtures	Dec. 31, 2011 Furniture and fixtures	Dec. 31, 2012 Furniture and fixtures Minimum	Dec. 31, 2012 Construction in progress	Dec. 31, 2011 Construction in progress
Property and equipment
Property and equipment, gross	$ 636,827,000	$ 523,511,000									$ 68,004,000	$ 67,864,000	$ 331,815,000	$ 268,678,000		$ 212,125,000	$ 160,229,000	$ 23,235,000	$ 20,576,000		$ 1,648,000	$ 6,164,000
Less accumulated depreciation	(249,812,000)	(223,932,000)
Property and equipment, net	387,015,000	299,579,000
Depreciation expense	27,511,000	27,939,000	28,733,000
Reimbursement of capital expenditures from regulatory authority	1,076,000	1,830,000	5,162,000	200,000	400,000	5,200,000
Amount recoverable for each $2 expended on certain qualifying capital expenditures under modernization fund							1
Amount expended for certain qualifying capital expenditures used as a base comparison for amount recovered							2
Useful life of capital improvements										3 years					10 years					5 years
Retention period of slot machine to be included as qualifying capital improvements										5 years
Amount available for recovery of capital improvements under state government administrative order							3,700,000
Number of additional state government fiscal years for availability of unexpended balance									1 year
Aggregate purchases which qualified for reimbursement								3,000,000	1,500,000
Amount qualified for reimbursement under the modernization fund								1,500,000	800,000
Remaining amount available for recovery of capital improvements under state government administrative order									1,400,000
Additional amount available for recovery of capital improvements from modernization fund, effective July 1, 2012 through June 30, 2014									$ 3,700,000